CECO · Ceco Environmental Corp · Holdings
Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.
Institutional Ownership Trend
Superinvestors Holding CECO
All superinvestors →Holder Concentration
Across 349 13F filersWho Holds CECO
Last 8 quarters through Sep 30, 2026 (filing window open)Each kind of 13F filer's share of the common shares 13F filers report. Holder type comes from regulatory records, never the filer's name; style, turnover and horizon are measured from each filer's own 13F book. The quarter selector does not change this card.
Jun 30, 2026, the newest closed quarter: 344 filers, like-for-like change +63.8%; actively managed books +58.7%; index-like books +81.0%.
| Holder type | Share | Filers | Change |
|---|---|---|---|
| Registered adviser | 49.4% | 196 | +70.7% |
| Exempt adviser | 0.4% | 5 | -40.5% |
| Adviser | 8.1% | 11 | +18.4% |
| Bank | 5.8% | 18 | +118.8% |
| Insurer | 0.2% | 3 | +31.4% |
| Broker-dealer | 0.0% | 1 | -19.2% |
| Benefit plan | 0.4% | 6 | +273.3% |
| Non-US | 2.2% | 10 | +158.2% |
| Holding company | 18.9% | 7 | +79.7% |
| Unknown | 14.8% | 87 | +41.3% |
| Style | Share | Filers | Change |
|---|---|---|---|
| Index-like | 25.0% | 36 | +81.0% |
| Systematic-like | 4.8% | 24 | +15.0% |
| Concentrated | 1.7% | 32 | -14.2% |
| Diversified active | 68.5% | 252 | +66.6% |
| Not measured | 0.0% | 0 | — |
| Unknown | 0.0% | 0 | — |
| Turnover | Share | Filers | Change |
|---|---|---|---|
| Low turnover | 49.5% | 172 | +93.0% |
| Medium turnover | 34.4% | 99 | +43.9% |
| High turnover | 6.5% | 50 | +32.6% |
| Unknown | 9.6% | 23 | +45.4% |
| Not measured | 0.0% | 0 | — |
| Holding horizon | Share | Filers | Change |
|---|---|---|---|
| Short horizon | 10.3% | 41 | +43.6% |
| Medium horizon | 17.5% | 56 | +73.9% |
| Long horizon | 59.7% | 207 | +65.3% |
| Unknown | 12.5% | 40 | +62.4% |
| Not measured | 0.0% | 0 | — |
| 13F book size | Share | Filers | Change |
|---|---|---|---|
| Under $1B | 4.2% | 78 | +12.1% |
| $1B to $10B | 13.6% | 92 | +115.8% |
| $10B to $100B | 17.9% | 106 | +43.1% |
| $100B or more | 64.4% | 68 | +66.9% |
| Not measured | 0.0% | 0 | — |
| Client base | Share | Filers | Change |
|---|---|---|---|
| Individuals and high net worth | 3.7% | 82 | +38.4% |
| Pooled investment vehicles | 8.4% | 34 | +58.0% |
| Registered funds and BDCs | 22.7% | 29 | +88.8% |
| Pension and profit sharing plans | 0.8% | 5 | +1536.1% |
| Insurance companies | 0.8% | 3 | +1725.1% |
| Governments and sovereign funds | 2.5% | 8 | +93.8% |
| Corporations | 0.2% | 1 | -55.3% |
| Other investment advisers | 0.0% | 5 | +2830.6% |
| Other | 1.2% | 3 | -3.0% |
| Diversified | 9.0% | 24 | +57.2% |
| Unknown | 50.7% | 150 | +57.3% |
| Private funds | Share | Filers | Change |
|---|---|---|---|
| Hedge funds | 17.2% | 60 | +90.0% |
| Private equity funds | 2.8% | 14 | +0.1% |
| Venture capital funds | 0.0% | 1 | +14.1% |
| Real estate funds | 0.0% | 2 | +19.6% |
| Securitized asset funds | 0.2% | 1 | +39.7% |
| Other private funds | 12.6% | 23 | +80.2% |
| Mixed private funds | 0.4% | 3 | +15.1% |
| Private funds, type not stated | 0.8% | 5 | +151.3% |
| No private funds | 15.8% | 91 | +59.8% |
| Unknown | 50.3% | 144 | +59.3% |
| Location | Share | Filers | Change |
|---|---|---|---|
| United States | 93.1% | 287 | +62.0% |
| Outside the US | 6.9% | 57 | +91.8% |
The Sep 30, 2026 filing window is still open, so its bar carries the Jun 30, 2026 positions of filers that have not filed yet.
How the mix is measured
Shares are 13F common shares restated to today's split basis; options and principal amounts are left out. The change compares only filers with a 13F in both quarters and keeps each filer in its bucket of the later quarter on both sides; a filer that continues under a new CIK is compared through its successor. Holder type comes from each filer's current regulatory profile; client base and private funds come from the Form ADV roster current at each quarter end (rosters from December 2019, so an earlier quarter reads Unknown). Style, turnover, horizon and book size are measured from each filer's 13F book in the newest measured quarter, and Not measured means none was. Actively managed books are those measured systematic-like, concentrated or diversified active.
Excluded 2 holders with no observed 2026-03-31 13F and 2 holders with no observed 2026-06-30 13F. Compared across CIK changes: JANUS HENDERSON GROUP PLC continues as Jupiter Topco LLC.
Conviction and Crowding
344 13F filers, quarter ended Jun 30, 2026Measured across every 13F filer's common-share book once the quarter's filing window closed. Crowding counts filers with high turnover or that advise private funds on Form ADV.
Managers in the top fifth by current three-year FundScore alpha were net sellers of $3,954,032 (0 buying, 1 selling).
Estimated Holder Cost Basis
Quarter ended Jun 30, 2026, on that quarter's share basisEstimated, never filed: each 13F buy is costed at its quarter's average traded price and each sale keeps the average cost, so this is what holders paid on average if they traded evenly through each quarter.
Estimated cost covers 62.5% of the 13F shares; positions already held when a filer's 13F history starts, or bought in a quarter without a trusted average price, have no estimate.
Shared Holders
Companies CECO's active holders also own, quarter ended Jun 30, 2026| # | Company | Shared holders |
|---|---|---|
| 1 | LIND Lindblad Expeditions Holdings, Inc. | 10 |
| 2 | LASR Nlight, Inc. | 13 |
| 3 | LTH Life Time Group Holdings, Inc. | 13 |
| 4 | MOD Modine Manufacturing Co | 21 |
| 5 | AGYS Agilysys Inc | 10 |
| 6 | CHEF Chefs' Warehouse, Inc. | 7 |
| 7 | TTI Tetra Technologies Inc | 9 |
| 8 | SMTC Semtech Corp | 16 |
| 9 | AIR Aar Corp | 12 |
| 10 | COHU Cohu Inc | 9 |
Shareholder Targets
13F filers that own its peers but not CECO, quarter ended Jun 30, 2026Found through its holder-overlap peers: LIND, LASR, LTH, MOD, AGYS, CHEF, TTI, SMTC, AIR, COHU, FWRG, BJRI, GHM, DIOD, AIP, DCO, DAVE, WLDN, ARLO, LYTS. 1,081 filers in all.
| # | Filer | In peers | Largest peers |
|---|---|---|---|
| 1 | WELLINGTON MANAGEMENT GROUP LLP Holding company, Diversified active | $1,373,860,517 13 held | SMTC, LTH, MOD |
| 2 | Capital Research Global Investors Adviser, Diversified active | $1,116,852,240 5 held | SMTC, MOD, AIR |
| 3 | JANE STREET GROUP, LLC Unknown, Diversified active | $991,355,550 12 held | SMTC, MOD, DAVE |
| 4 | Hood River Capital Management LLC Registered adviser, Diversified active | $938,015,678 4 held | DAVE, SMTC, LTH |
| 5 | Artisan Partners Limited Partnership Registered adviser, Diversified active | $588,761,949 5 held | MOD, SMTC, AGYS |
| 6 | PARADIGM CAPITAL MANAGEMENT INC/NY Registered adviser, Concentrated | $578,262,698 4 held | MOD, DCO, COHU |
| 7 | FULLER & THALER ASSET MANAGEMENT, INC. Registered adviser, Diversified active | $530,672,990 7 held | MOD, AIR, DAVE |
| 8 | MASSACHUSETTS FINANCIAL SERVICES CO /MA/ Registered adviser, Diversified active | $475,256,281 7 held | MOD, SMTC, CHEF |
| 9 | NEUBERGER BERMAN GROUP LLC Holding company, Diversified active | $474,568,105 12 held | LASR, TTI, SMTC |
| 10 | Leonard Green & Partners, L.P. Registered adviser, Unknown | $450,371,390 1 held | LTH |
Fund Ownership of CECO by Fund Type
Registered funds' Form N-PORT reports for the quarter ended Jun 30, 2026Index funds and index ETFs hold 10.65% of shares outstanding.
| Fund type | Of shares outstanding | Shares |
|---|---|---|
| Index funds | 2.21% | 1,297,015 |
| Index ETFs | 8.43% | 4,938,372 |
| Active ETFs | 1.66% | 972,066 |
| Active funds | 24.87% | 14,564,680 |
| Unclassified | 0.39% | 230,057 |
| All registered funds | 37.57% | 22,002,190 |
How fund types are measured
Each fund series counts once, with its latest Form N-PORT report dated inside the quarter; only long share positions count, restated to today's split basis. The fund type is the series' latest Form N-CEN answer on or before the quarter end (the index-fund box and the exchange-traded flag), never its name. Unclassified funds have no usable N-CEN; unit investment trusts are among them, so index ownership is a floor. Funds sit inside their advisers' 13F reports, so these shares overlap the 13F figures and are never added to them.
| Holder | Value (USD) | % of 13F | Shares | Type | Filed | Open |
|---|---|---|---|---|---|---|
| Mega FMR LLC Holding company | $410,547,501 | 8.71% | 4,524,438 | Shares | 2026-08-13 | |
| Mega BlackRock, Inc. Holding company | $392,358,484 | 8.33% | 4,323,986 | Shares | 2026-08-07 | |
| Mega VANGUARD CAPITAL MANAGEMENT LLC Registered adviser | $212,263,726 | 4.51% | 2,339,252 | Shares | 2026-08-13 | |
| Mega DIMENSIONAL FUND ADVISORS LP Registered adviser | $198,295,481 | 4.21% | 2,185,315 | Shares | 2026-08-11 | |
| Mega T. Rowe Price Investment Management, Inc. Adviser | $195,449,695 | 4.15% | 2,153,953 | Shares | 2026-08-14 | |
| Mega AMERICAN CENTURY COMPANIES INC | $189,503,321 | 4.02% | 2,088,421 | Shares | 2026-08-12 | |
| Large Driehaus Capital Management LLC Registered adviser | $141,598,499 | 3.01% | 1,560,486 | Shares | 2026-08-14 | |
| Mega GEODE CAPITAL MANAGEMENT, LLC Registered adviser | $132,515,697 | 2.81% | 1,460,389 | Shares | 2026-08-12 | |
| Mid Divisadero Street Capital Management, LP Registered adviser | $120,667,594 | 2.56% | 1,329,817 | Shares | 2026-08-14 | |
| Mega STATE STREET CORP Bank | $114,757,970 | 2.44% | 1,264,690 | Shares | 2026-09-22 | |
| Mega Capital World Investors Adviser | $105,004,328 | 2.23% | 1,157,200 | Shares | 2026-08-12 | |
| Mega TWO SIGMA INVESTMENTS, LP Registered adviser | $91,957,004 | 1.95% | 1,013,412 | Shares | 2026-08-14 | |
| Mid NEEDHAM INVESTMENT MANAGEMENT LLC Registered adviser | $86,883,550 | 1.84% | 957,500 | Shares | 2026-08-14 | |
| Mega Jupiter Topco LLC | $86,194,287 | 1.83% | 949,904 | Shares | 2026-08-14 | |
| Large ROYCE & ASSOCIATES LP Registered adviser | $76,431,844 | 1.62% | 842,317 | Shares | 2026-08-14 | |
| Mega PRICE T ROWE ASSOCIATES INC /MD/ Registered adviser | $75,830,691 | 1.61% | 835,692 | Shares | 2026-08-14 | |
| Mid EMERALD ADVISERS, LLC Registered adviser | $66,855,780 | 1.42% | 736,784 | Shares | 2026-08-05 | |
| Large KING LUTHER CAPITAL MANAGEMENT CORP Registered adviser | $65,053,774 | 1.38% | 716,925 | Shares | 2026-08-10 | |
| Mega Invesco Ltd. Adviser | $60,607,875 | 1.29% | 667,929 | Shares | 2026-08-14 | |
| Large LORD, ABBETT & CO. LLC Registered adviser | $58,265,152 | 1.24% | 642,111 | Shares | 2026-08-14 | |
| Small IES Holdings, Inc. | $56,578,839 | 1.20% | 623,527 | Shares | 2026-08-14 | |
| Large Thrivent Financial for Lutherans Registered adviser | $55,168,195 | 1.17% | 607,981 | Shares | 2026-08-14 | |
| Large GW&K Investment Management, LLC Registered adviser | $54,584,101 | 1.16% | 601,544 | Shares | 2026-08-12 | |
| Mega ARROWSTREET CAPITAL, LIMITED PARTNERSHIP Registered adviser | $51,584,238 | 1.10% | 568,484 | Shares | 2026-08-13 | |
| Mega NORTHERN TRUST CORP Bank | $44,688,630 | 0.95% | 492,491 | Shares | 2026-08-13 | |
| Mega UBS Group AG Bank | $43,121,825 | 0.92% | 475,224 | Shares | 2026-08-13 | |
| Mid EMERALD MUTUAL FUND ADVISERS TRUST Registered adviser | $42,758,502 | 0.91% | 471,220 | Shares | 2026-08-05 | |
| Mega VANGUARD PORTFOLIO MANAGEMENT LLC Registered adviser | $41,261,927 | 0.88% | 454,727 | Shares | 2026-08-13 | |
| Mega Legal & General Group Plc | $40,460,964 | 0.86% | 445,900 | Shares | 2026-08-14 | |
| Mega CHARLES SCHWAB INVESTMENT MANAGEMENT INC Registered adviser | $40,166,423 | 0.85% | 442,654 | Shares | 2026-08-14 | |
| Mega Nuveen, LLC | $37,588,227 | 0.80% | 414,241 | Shares | 2026-08-11 | |
| Mega VOYA INVESTMENT MANAGEMENT LLC Registered adviser | $35,959,808 | 0.76% | 396,295 | Shares | 2026-08-12 | |
| Mega VANGUARD FIDUCIARY TRUST CO | $34,456,155 | 0.73% | 379,724 | Shares | 2026-08-13 | |
| Mid OBERWEIS ASSET MANAGEMENT INC/ Registered adviser | $32,491,453 | 0.69% | 358,072 | Shares | 2026-08-14 | |
| Mega DEUTSCHE BANK AG\ Non-US | $30,474,664 | 0.65% | 335,846 | Shares | 2026-08-07 | |
| Large VAN LANSCHOT KEMPEN INVESTMENT MANAGEMENT N.V. Non-US | $29,703,557 | 0.63% | 327,348 | Shares | 2026-08-14 | |
| Mid Harvey Partners, LLC Registered adviser | $28,232,117 | 0.60% | 311,132 | Shares | 2026-08-14 | |
| Mid KENNEDY CAPITAL MANAGEMENT LLC Registered adviser | $25,798,652 | 0.55% | 284,314 | Shares | 2026-08-14 | |
| Large First Eagle Investment Management, LLC Registered adviser | $24,891,977 | 0.53% | 274,322 | Shares | 2026-08-24 | |
| Mega MORGAN STANLEY Holding company | $24,216,051 | 0.51% | 266,873 | Shares | 2026-08-13 | |
| Mega GOLDMAN SACHS GROUP INC Holding company | $24,151,447 | 0.51% | 266,161 | Shares | 2026-08-14 | |
| Mega Russell Investments Group, Ltd. | $23,815,616 | 0.51% | 262,460 | Shares | 2026-08-06 | |
| Mega MILLENNIUM MANAGEMENT LLC Registered adviser | $23,546,485 | 0.50% | 259,494 | Shares | 2026-08-14 | |
| Mid SEGALL BRYANT & HAMILL, LLC Registered adviser | $23,516,632 | 0.50% | 259,165 | Shares | 2026-08-12 | |
| Mid NEW SOUTH CAPITAL MANAGEMENT INC Registered adviser | $23,349,851 | 0.50% | 257,327 | Shares | 2026-08-10 | |
| Large Rockefeller Capital Management L.P. Registered adviser | $22,309,606 | 0.47% | 245,863 | Shares | 2026-08-13 | |
| Mid Engineers Gate Manager LP | $22,063,884 | 0.47% | 243,155 | Shares | 2026-08-14 | |
| Mid Penn Capital Management Company, LLC Registered adviser | $21,516,178 | 0.46% | 237,119 | Shares | 2026-07-30 | |
| Mega BANK OF AMERICA CORP /DE/ Bank | $21,187,606 | 0.45% | 233,498 | Shares | 2026-08-14 | |
| Large BESSEMER GROUP INC | $19,974,047 | 0.42% | 220,139 | Shares | 2026-08-12 | |
| Large LOOMIS SAYLES & CO L P Registered adviser | $19,959,442 | 0.42% | 219,963 | Shares | 2026-08-14 | |
| Mega Swedbank AB | $18,420,220 | 0.39% | 203,000 | Shares | 2026-07-15 | |
| Mega Amundi Holding company | $17,976,138 | 0.38% | 198,106 | Shares | 2026-08-11 | |
| Mega BNP PARIBAS ARBITRAGE, SA Non-US | $17,962,890 | 0.38% | 197,960 | Shares | 2026-08-13 | |
| Large Point72 Asset Management, L.P. Registered adviser | $17,796,836 | 0.38% | 196,130 | Shares | 2026-08-14 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $17,231,526 | 0.37% | 189,900 | Put | 2026-08-14 | |
| Mega FIRST TRUST ADVISORS LP Registered adviser | $15,416,272 | 0.33% | 169,895 | Shares | 2026-08-11 | |
| Large Walleye Capital LLC Registered adviser | $15,415,455 | 0.33% | 169,886 | Shares | 2026-08-03 | |
| Mega Bank of New York Mellon Corp Bank | $15,153,306 | 0.32% | 166,997 | Shares | 2026-08-06 | |
| Mid Robeco Schweiz AG | $14,987,616 | 0.32% | 165,171 | Shares | 2026-07-28 | |
| Large NEW YORK STATE COMMON RETIREMENT FUND | $14,907,402 | 0.32% | 164,287 | Shares | 2026-07-29 | |
| Mega CITADEL ADVISORS LLC Registered adviser | $14,597,524 | 0.31% | 160,872 | Shares | 2026-09-02 | |
| Small Pier Capital, LLC Registered adviser | $13,798,922 | 0.29% | 152,071 | Shares | 2026-08-05 | |
| Large Allspring Global Investments Holdings, LLC Holding company | $13,756,456 | 0.29% | 151,603 | Shares | 2026-08-13 | |
| Large POLEN CAPITAL MANAGEMENT LLC Registered adviser | $12,520,032 | 0.27% | 137,977 | Shares | 2026-08-04 | |
| Large WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC Registered adviser | $12,160,974 | 0.26% | 134,020 | Shares | 2026-08-12 | |
| Mid PEREGRINE CAPITAL MANAGEMENT LLC Registered adviser | $12,017,877 | 0.26% | 132,443 | Shares | 2026-07-17 | |
| Mega AQR CAPITAL MANAGEMENT LLC Registered adviser | $11,777,868 | 0.25% | 129,798 | Shares | 2026-08-14 | |
| Large SILVERCREST ASSET MANAGEMENT GROUP LLC Registered adviser | $11,389,412 | 0.24% | 125,517 | Shares | 2026-08-14 | |
| Mid Informed Momentum Co LLC Registered adviser | $10,950,230 | 0.23% | 120,677 | Shares | 2026-08-13 | |
| Large PEAK6 LLC Broker-dealer | $10,888,800 | 0.23% | 120,000 | Call | 2026-08-13 | |
| Small ESSEX INVESTMENT MANAGEMENT CO LLC Registered adviser | $10,147,731 | 0.22% | 145,717 | Shares | 2026-10-19 | |
| Small MARTIN & CO INC /TN/ Registered adviser | $10,108,526 | 0.21% | 111,401 | Shares | 2026-08-12 | |
| Mega Swiss National Bank | $9,957,626 | 0.21% | 109,738 | Shares | 2026-08-11 | |
| Mega BARCLAYS PLC Bank | $9,898,100 | 0.21% | 109,082 | Shares | 2026-08-14 | |
| Mid Hodges Capital Management Inc. Registered adviser | $9,784,584 | 0.21% | 107,831 | Shares | 2026-08-03 | |
| Large Assenagon Asset Management S.A. | $9,775,366 | 0.21% | 140,370 | Shares | 2026-10-15 | |
| Small INTRINSIC EDGE CAPITAL MANAGEMENT LLC Registered adviser | $9,342,499 | 0.20% | 102,959 | Shares | 2026-08-12 | |
| Mega SEI INVESTMENTS CO | $9,334,514 | 0.20% | 102,871 | Shares | 2026-08-14 | |
| Large Universal- Beteiligungs- und Servicegesellschaft mbH | $8,822,922 | 0.19% | 97,233 | Shares | 2026-08-06 | |
| Small MARATHON CAPITAL MANAGEMENT Registered adviser | $8,659,318 | 0.18% | 95,430 | Shares | 2026-07-22 | |
| Mid Granahan Investment Management, LLC Registered adviser | $8,604,239 | 0.18% | 94,823 | Shares | 2026-08-14 | |
| Mid RBF Capital, LLC | $8,422,486 | 0.18% | 92,820 | Shares | 2026-08-14 | |
| Small Panoramic Capital, LLC Registered adviser | $7,936,120 | 0.17% | 87,460 | Shares | 2026-08-14 | |
| Mega UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC Registered adviser | $7,646,565 | 0.16% | 84,269 | Shares | 2026-08-13 | |
| Large GREAT LAKES ADVISORS, LLC Registered adviser | $7,569,529 | 0.16% | 83,420 | Shares | 2026-08-10 | |
| Mega JPMORGAN CHASE & CO Bank | $7,566,078 | 0.16% | 83,382 | Shares | 2026-08-12 | |
| Mega Qube Research & Technologies Ltd Exempt adviser | $7,434,600 | 0.16% | 81,933 | Shares | 2026-08-14 | |
| Large PUBLIC EMPLOYEES RETIREMENT SYSTEM OF OHIO Benefit plan | $7,410,282 | 0.16% | 81,665 | Shares | 2026-08-17 | |
| Small De Lisle Partners LLP Non-US | $7,389,956 | 0.16% | 81,441 | Shares | 2026-08-12 | |
| Large Squarepoint Ops LLC Registered adviser | $7,232,703 | 0.15% | 79,708 | Shares | 2026-08-14 | |
| Large Alberta Investment Management Corp Non-US | $7,110,749 | 0.15% | 78,364 | Shares | 2026-08-06 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $6,912,210 | 0.15% | 76,176 | Shares | 2026-08-14 | |
| Mega WELLS FARGO & COMPANY/MN Bank | $6,898,688 | 0.15% | 76,027 | Shares | 2026-08-14 | |
| Mid Legato Capital Management LLC Registered adviser | $6,775,918 | 0.14% | 74,674 | Shares | 2026-08-06 | |
| Small Peregrine Asset Advisers, Inc. Registered adviser | $6,601,879 | 0.14% | 72,756 | Shares | 2026-08-10 | |
| Mega SUSQUEHANNA INTERNATIONAL GROUP, LLP | $6,424,392 | 0.14% | 70,800 | Call | 2026-08-14 | |
| Large CREDIT AGRICOLE S A | $6,273,763 | 0.13% | 69,140 | Shares | 2026-08-14 | |
| Small Meros Investment Management, LP Registered adviser | $6,176,308 | 0.13% | 68,066 | Shares | 2026-08-14 | |
| Small Lisanti Capital Growth, LLC | $6,104,533 | 0.13% | 67,275 | Shares | 2026-08-10 |
Showing the top 100 of 357 holders. Create a free account to see every holder, past quarters, search, filters and CSV export.